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20121108
20121116
STATION
LINKTV 4
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Search Results 0 to 3 of about 4
LINKTV
Nov 8, 2012 3:00pm PST
cancer. colon cancer and stomach cancer can be identified with the help of fiberoptic technology. a flexible tube called a fiberscope is inserted in the area under investigation. the fibers transmit an image from the lighted end of the scope to an eyepiece or monitor. other cancers that grow within tissues, such as breast cancer and lung cancer, can be detected by x-rays. ct scans and mri's can also be used to find deeply embedded cancers, such as brain cancer. i don't rember being anything but sort of shocked. i couldn't believe it. i had no-- there were no risk factors in my family other than my father, and he was anomalous. i was so healthy, and i mean, i just really didn't know what to do and of course, because i had never thought about it, i was very unprepared. we all have ways of trying to organize what happens to us in a cause/effect relationship in our minds. and that leads us constantly to the same conclusions that if something bad happened to me, there must be some very simple linear explanation in my life for what happened, that this particular lifestyle, this stress
LINKTV
Nov 9, 2012 3:00pm PST
: so for copan's metateros, the market potential was limited by technology. because they had to carry the stones to market on their backs, the market had to be close by. filomeno's problem is similar. although he can use a bus to get his metates to market, the cost of transportation must be added to the sale price. if filomeno transports his metates much beyond the neighboring market town, he must add the cost of a round-trip bus fare to the price. and this would make his metates too expensive. ten miles from filomeno's house is the town of tlacolula. market is held here once a week. almost everything is sold by the actual producers or their families. weekly markets are one of the most ancient of economic institutions. today, sales involve cash. but until quite recently, most societies, like the ancient maya, depended on barter, so much of one commodity for so much of another. market at tlacolula is highly competitive. there's a large number of sellers for each product all in competition with each other, and all within sight of each other. and the buyers, also people from the countrys
LINKTV
Nov 15, 2012 3:00pm PST
have never been with somebody when they've died. and i think that speaks to health care and technology these days. there was a time when doctors did not always reveal that a patient's condition was terminal. it was a judgment call, based on their perception of the situation and the patient's ability to handle the information. and some would concede that if they were dealing with a man of affairs, a major businessman, they would expect that person, that man to be both levelheaded enough and to have such weighty considerations that if he had cancer, he ought to know, because he would need to make arrangements. but for the rest of us in the hoi polloi, the sense was, doctors knew best. we have become much more honest. basically, you know, patients' rights, patients' autonomy has been increasingly realized. so we no longer really feel we have the right to withhold information from them. so certainly, much more frankly and much earlier, we tell patients about fatal diagnoses. i was just on a shopping line in a grocery store with my young son. he was three at the time, and i was holding him
LINKTV
Nov 14, 2012 8:00am PST
on now. the physics-types and the technology-types are working on. but when--and if and when they're solved, things are gonna be like different. really different. questions? i didn't quite catch the deal on breeder reactors because, say, losing mass is the name of the game. redirectors make it. let's go to that very, very quickly. what a breeder reactor does is very simple. if in your reactor you have 238 of plutonium-- or 235 of plutonium causing the fusion, if you put in some u-238-- i erased it over here-- the 238 will be turned to plutonium. so you're really not gaining any mass. what you're doing is you're converting something that's not very helpful, 238. you're converting that to something that is very helpful, energy-wise, plutonium. and the analogy i used in the book is like putting gasoline-- putting some water in your gasoline in your car. so it isn't like you get more mass than you started with. you're just converting the water to the gasoline. or in this case, you're converting the 238 to plutonium. and it turns out, every reactor is all the time breeding. if you have
Search Results 0 to 3 of about 4